ICP N9MP1 Service Manual page 32

Service Manual
Figure 39
Horizontal Right Installations (Single Pipe & Direct Vent N9MP1 & N9MP2(A1) Models)
Return
Air
Combustion Blower
Mounting Screws (4)
Horizontal Right Installations - (Single Pipe & Direct Vent N9MP1 & N9MP2 Models)
Relocate the plastic caps and clamps on the condensate drain trap
from the vertical drain stub to the horizontal drain stubs. Secure the
clamps tightly to prevent condensate leakage.
Mount the condensate drain trap in a vertical position to the right
side of the furnace using the two screws and gasket that are pro-
vided. Note: The condensate trap will be located under the furnace
in a vertical position when the furnace is placed horizontally on the
right side. If needed, remove the hole plugs from the furnace side
panel and relocate to the open set of holes in the opposite side pan-
7
el. Drill two / ² diameter holes in the casing using the condensate
64
trap as the template.
Ensure that the vent fitting and the 90° elbow is securely attached to
the combustion blower using the rubber coupling and clamps.
NOTE: The vent fitting MUST be installed with the airflow marking
arrow pointed toward the vent pipe.
Plug the left drain stub on the vent fitting with the rubber plug. Use a
blunt pointed screwdriver to push the plug into the stub.
Remove the pressure switch hose from the upper stub on the plastic
transition box.
440 08 2001 02
Transition Box
Plastic
Caps
Combustion Blower
5
/ ² ² ² ² Hose &
8
Clamps
Pressure Switch
Hose, Blower
Plastic
Caps
Condensate
Trap & Gasket
Vent Pipe
Rubber
Plug
Pressure Switch
Hose, Transition
Pressure
Switch, Transition
Pressure
Switch, Blower
Drain Line
Relocate the plastic caps on the stubs of the plastic transition from
the lower stubs to the upper stubs and secure tightly with the
clamps.
Route the hose to the large drain stub on the condensate trap. Cut
off excess hose and discard. Connect the pressure switch hose to
the lower stub on the plastic transition box. NOTE: Failure to correct-
ly install the pressure switch hose to the transition can adversely af-
fect the safety control operation.
3
Connect the / ² OD rubber hose with the 90° bend to the drain stub
4
on the bottom of the plastic transition box and secure with a
clamp.
Route the hose to the large drain stub on the condensate trap. Cut
off excess hose and discard. Connect the hose to the drain stub on
the trap and secure with a
5
Connect the / ² OD rubber hose with the 90° bend to the right stub
8
on the vent fitting and secure with a
Route the hose to the smaller drain stub on the condensate trap. Cut
off excess hose and discard. Connect the hose to the drain stub on
the trap and secure with a
NOTE: Ensure hoses maintain a downward slope to the conden-
sate trap with no kinking or binding for proper condensate drainage.
30
Single Stage Multi Position Furnace
Vent Pipe
Grommet
Vent Fitting
& Clamps
Inlet
Supply
Air
3
/ ² ² ² ² Hose
4
& Clamps
dwg 25--23--59
(See Figure 39)
3
/ ² clamp.
4
5
/ ² clamp.
8
5
/ ² clamp.
8
Combustion
Air Pipe,
N9MP2 ONLY
3
/ ²
4